I don't think I'd load the 405s any below 14 - 1500. I'd want a dead deer, and not a chase. Loads below a thousand punch nice holes in paper, but I'm not too confident in what they'd do to venison. To me, a thirty yard shot and a 300 yard shot require the same bullet.....one that bang flops. Last year, I watched deer at about 225 yards in the same place during rifle and ML seasons. I had the .44 mag during rifle and the .50 Huntsman during ML. I never took as shot. The time was the same, dark thirty, quarter after five. I was not about to go running off tracking a wounded deer in the dark, so I let them walk and was skunked for the seasons. If I were packing the .45-70 running close to 2 grand, and knowing the drop, It could have put venison in the freezer.
Pete